Former Michigan State tight end Dion Sims shows off his versatility at the Spartans' NFL Pro Day combine on Wednesday at the Duffy Daugherty Football Building in East Lansing.J. Scott Park | MLive.com

EAST LANSING — Dion Sims used Michigan State's MSU Pro Day combine to prove he's quicker and stronger than he exhibited in Indianapolis at the NFL Combine.

But what Sims is really anxious to show is that he can be successful playing in the NFL.

"My ceiling, the sky is the limit,'' Sims said, asked of his potential. "I'm only scratching the surface right now. I have a lot of room for improvement.''

The 6-foot-5, 262-pound tight end didn't post the sort of statistics last season that would indicate he has NFL star potential — last season's 36 catches for 475 yards with two touchdowns were hardly inspiring.

But watching Sims perform in skeleton drills and combine settings is another matter.

On Wednesday at the Duffy Daugherty Football Building, Sims did 28 repetitions of 225 pounds on the bench press — up from 22 at the NFL Combine in Indianapolis.

Sims said he met with the San Francisco 49ers, Tampa Bay Buccaneers and Pittsburgh Steelers on Tuesday, and followed up with Wednesday meetings with the Miami Dolphins, Indianapolis Colts and Cincinnati Bengals.

"I just wanted to come out and do well in position drills, show I could catch the ball and be the all-around tight end that I am,'' Sims said of his Wednesday workout in front of representatives from 29 of the NFL's 32 teams.

Sims has dropped 18 pounds from his heaviest playing weight of the season, and he said he plans on keep his weight around 262.

"I feel better body-wise, and I've chance to a healthy diet,'' Sims said. "I'm gonna stay where I am; I feel good where I'm at now.''

Sims said he has enjoyed being around other top NFL prospects, and he has learned NFL scouts and personnel managers are constantly evaluating them at this stage of the draft process.

"It's all real, (and) there's an audition for everything,'' Sims said. "You have to be on top of it all and just be yourself.''